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A new technique for the measurement of show-through mottle of fine paper, TAPPI Journal September 2019

ABSTRACT: Mottling within print-through and show-through is caused by the variability of the local optical properties of the sheet. This mottling is visually disturbing and a mark of poor paper quality. The ability to predict print-through mottle of printed paper by measuring show-through mottle on the unprinted sheet would be a valuable asset for paper machine control.We examined the relationship between print-through mottle and show-through mottle. We worked with nine samples of 60 lb. uncoated fine paper (90 g/m2), from various North American paper companies, that were printed on an offset press, 400K (400% Black), on both sides. A show-through mottle instrumental determination technique was developed using an existing Fast Fourier Transform-based algorithm. The nine samples examined were ranked similarly by the visual evaluation of print-through mottle and by the instrumental determination of show-through mottle. We thus established that show-through on the unprinted sheet can be used as a reliable predictor of print-through, therefore saving time and money for papermakers. We also found a significant two-sidedness in show-through for some of the samples.

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Open Access
Recent advances in lignin-based polyurethanes, TAPPI JOURNAL

Recent advances in lignin-based polyurethanes, TAPPI JOURNAL April 2017

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Open Access
Toward valorization of lignin: characterization and fast pyr

Toward valorization of lignin: characterization and fast pyrolysis of lignin recovered from hot-water extracts of electron-beam irradiated sugar maple, TAPPI JOURNAL April 2017

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Open Access
Guest Editorial: The next act for nonwovens, TAPPI JOURNAL A

Guest Editorial: The next act for nonwovens, TAPPI JOURNAL August 2017

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Open Access
Visual discrimination of hygiene tissue softness in the abse

Visual discrimination of hygiene tissue softness in the absence of haptic feedback, TAPPI JOURNAL August 2017

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Open Access
Modeling the influence of forming fabric structure on vacuum

Modeling the influence of forming fabric structure on vacuum box dewatering, TAPPI JOURNAL August 2017

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Open Access
Editorial: In praise of challenging papers

Editorial: In praise of challenging papers, and those who review them, TAPPI JOURNAL August 2015

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Open Access
Editorial: 2016 TJ highlights: Recovery cycle, nanotechnolo

Editorial: 2016 TJ highlights: Recovery cycle, nanotechnology, and recycling research, November 2016 TAPPI JOURNAL

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Magazine articles
Open Access
The influence of strain rate and pulp properties on the stre

The influence of strain rate and pulp properties on the stress relaxation of wet paper — modeling of relaxation, November 2016 TAPPI JOURNAL

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Magazine articles
Open Access
Effect of eucalyptus bark contamination during pulping of mi

Effect of eucalyptus bark contamination during pulping of mixed southern hardwoods, November 2016 TAPPI JOURNAL

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